Porosity effects on the thermal buckling of functionally graded plate: Modeling and analysis
Khayra Draouche,Lazreg Hadji,Royal Madan,Nafissa Zouatnia,Hassen Ait Atmane
Abstract
Porosity in functionally graded materials (FGMs) arises during fabrication due to several factors, depending on the technique employed. The type of reinforcement used significantly influences the overall porosity percentage. The presence of porosity negatively affects the performance of FG structures. Consequently, this study focuses on conducting a thermal buckling analysis of FG porous plates using a refined shear deformation plate theory. This theory accounts for a quadratic variation of the transverse shear strains through the thickness and satisfies zero traction boundary conditions on the plate's top and bottom surfaces without relying on shear correction factors. Thermal loads were applied by varying the temperature uniformly, linearly, and non-linearly through the thickness. The problem was addressed assuming the plate to be simply supported at its ends. The rule of mixtures was used to estimate the material properties, and a porosity parameter was introduced to represent the equal distribution of porosity in the metal and ceramic mixture. The effects of volume fraction index, porosity fraction index, aspect ratio, and side-to-thickness ratio were investigated.
Khayra Draouche — Laboratory of Geomatics and Sustainable Development, University of Tiaret, Algeria
Lazreg Hadji, Nafissa Zouatnia — Department of Civil Engineering, University of Tiaret, BP 78 Zaaroura, Tiaret, 14000, Algeria
Royal Madan — Department of Mechanical Engineering, Graphic Era (Deemed to be University), Dehradun 248002, Uttarakhand, India
Hassen Ait Atmane — Laboratory of Structures, Geotechnics and Risks, Department of Civil Engineering, Hassiba Benbouali University of Chlef, Chlef, Algeria
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